Dissertação
Estudo de tecnologias de aplicação e inseticidas para o controle de percevejos fitófagos na cultura da soja
Fecha
2006-03-03Registro en:
MAZIERO, Heleno. Study of application technologies and insecticides for stink bugs control in soybean crop. 2006. 46 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2006.
Autor
Maziero, Heleno
Institución
Resumen
The objectives of the study were: 1st to avaluate the effects of spray volume in
application with flat fan nozzels on the efficacy of the insecticides endossulfan and
tiamethoxan+lambdacyalotrin in the control of Piezodorus guildinii. 2nd to avaluate
and compare the eficiency of the insecticides imidacloprid+betaciflutrin and
thiametoxan+cypermethrin in the control of Nezara viridula by aerial application,
using rotary disc atomizers, with and without using vegetal oil and ground application.
3rd to avaluate the efficiency of the insecticides imidacloprido+beta-ciflutrina,
tiamethoxan+cipermetrina e endossulfan in the control of Nezara viridula by aerial
application using rotary disc atomizers and hidraulic hollow cone nozzles. The
inseticide tiamethoxan+lambdacyalotrin (21,15 + 15,90 g i.a. ha-1) has biger control of
Piezodorus guildinii and residual effect than endossulfan (437,50 g i.a. ha-1).
Tiamethoxan+lambdacyalotrin and endossulfan have the same behavior, improving
Piezodorus guildinii control s with spray volume increasing. The aerial applications
using rotary disc atomizers are more eficient when it is used vegetal oil as a carrier of
the insecticides. Imidacloprid+betaciflutrin and thiametoxan+cypermethrin applied
using rotary disc atomizers, with spray volume of 10 L ha-1, had equal eficiency than
its graund application, with spray volume of 100 L ha-1. The effects of these
insecticides reacted in the same way to the application technologies.
Imidacloprido+beta-ciflutrina, tiamethoxan+cipermetrina e endossulfan are more
eficient in the Nezara viridula control when applied using rotary disc atomizers Turbo
Aero TA 88C5 than using hidraulic hollow cone nozzels D-6 and core 45.